This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X15SFB, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI100 Standard Cylinder SI100X15SFB
The AirTAC Airtac SI100 Standard Cylinder SI100X15SFB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 15mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X15SFB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke15 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X15SFB
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI100 Standard Cylinder SI100X15SFB
The AirTAC SI100X15SFB is a discontinued double-acting ISO 15552 profile cylinder with an FB flange. It delivers 3927 N push at 0.5 MPa through a G1/2 port. The direct replacement is SAI100X15SFB, matching bore, stroke, force, port, and mounting.
The SAI upgrade uses two Y-shaped piston seals for low start-up pressure. It adds SAIL and BSAI lock variants absent in the SI line. The -S magnet works with CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X15SFB Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X15SFB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X15SFB |
| Bore size | Ø100 mm |
| Stroke | 15 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI100X15SFB carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X15SFB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100X15SFB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI100 Standard Cylinder SI100X15SFB Is Used
High-Force Clamping
Secures heavy metal workpieces in machining fixtures, utilizing the 3927 N push force at 0.5 MPa for rigid holding.
Pallet Diversion
Short 15 mm stroke extends a diverter gate to route heavy pallets on a packaging line without occupying excess space.
Heavy Load Stops
Acts as a robust end-stop for large material handling carts using the FB flange mount to absorb high kinetic impacts safely.
Replacing the Airtac SI100 Standard Cylinder SI100X15SFB with the SAI100X15SFB
To replace this SI100X15SFB, order the SAI100X15SFB. Verify the ISO 15552 FB flange interface, 100 mm bore, 15 mm stroke, G1/2 port, and -S magnet. The 100 mm bore yields 3927 N push at 0.5 MPa; a smaller 80 mm bore yields 2513 N, while a 125 mm bore yields 6136 N. For load holding, note a standard cylinder drifts without air; use a pilot check valve or the SAIL/BSAI lock variant. Stroke is under 300 mm, so rod bending is minimal.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X15SFB
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100X15SFB FAQ
Yes, the SI100X15SFB is discontinued. The direct replacement is the SAI100X15SFB. It shares the identical ISO 15552 mounting interface, 100 mm bore, 15 mm stroke, FB flange, and G1/2 port, fitting existing fixtures perfectly.
This double-acting cylinder features a G1/2 port. It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X15SFB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X15SFB replacement — usually within 7-8 hours.